How an ‘Infinity Mirror’ Device Could Help Solve AI’s Biggest Problem

Artificial intelligence companies are spending billions on chips and infrastructure. Researchers think optical computing could help.

BY CHRIS MORRIS @MORRISATLARGE

A research project led by Xingjie Ni, associate professor of electrical engineering at Penn State, could offer a way for companies to address the ongoing issue of AI energy overconsumption. Photo: Jeff Xu / Penn State

Artificial intelligence, as it stands today, isn’t cheap. The leaders in the field are spending tens of billions of dollars on chips, data centers and more, running up steep losses so far. That has raised questions of sustainability. When these companies shift into profit mode,........

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